Full vulnerability report · 2026

CVE-2026-53255High confidence

Bluetooth: MGMT: validate advertising TLV before type checks

Linux · Linux

7.1HighCVSS 3.1

Recommended action

Patch only the product branches with a verified fix

High technical severity; prioritise exposed affected systems while verifying vendor guidance. Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Fix availability varies by product

Operational reassessment

Published severity in operational context

Open reassessment dashboard →

Published severityHighOperational priority:Medium, lowered one band.downgradedsince 25 Jun 2026

Evidence used

No CISA KEV confirmation is currently recorded.
Exploitation requires an existing local or physical foothold with privileges.
EPSS is 0.12% for the current model date.

Compensating controls

Validate the affected product branch and deploy the verified fixed release.
Restrict local access and enforce least privilege on affected hosts.
Monitor vendor guidance and exploitation sources for a material change.

Verification

Confirm that the asset runs Linux Linux and falls inside the recorded affected range.
Verify the installed build against the product-specific fixed version after deployment.
Validate exposure, authentication requirements and compensating controls in the actual environment.
Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.

Cross-source reconciliation

Remediation availability differs by product scope

Verified remediation exists for at least one product or source, but 20 structured product or package states remain unresolved. Apply remediation only to the exact product branch confirmed by its source.

Canonical Ubuntu Security: 20 affected package states with no published fix

Distribution package intelligence

Release-specific package status

Debian, ubuntu findings are scoped to the named distribution, release and source package. An absent finding does not mean a package is unaffected.

24 package states

Package result overrides the generic status

BlackTree has verified remediation for at least one product or source, but the relevant distribution still reports no fixed package for 20 affected package states shown here. Treat those rows as affected with no fix until that distribution publishes a fixed version.

Repository candidate not checked

A published vendor fix does not prove that a matching update is enabled and installable on a particular asset. Confirm the local package candidate before scheduling remediation.

Distribution release	Source package	Vendor state	Fixed version	Evidence
Debian trixietrixie · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.12.94-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian bookwormbookworm · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`6.1.176-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian forkyforky · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.13-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Debian sidsid · source	`linux`	Vendor fix publishedDebian records a fixed source-package version for this release.	`7.0.13-1`	Debian Security Tracker ↗Source updated 6 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-aws`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-fde`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-azure-nvidia`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gcp`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gke`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-gkeop`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-ibm`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-lowlatency`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-lowlatency`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-nvidia-tegra`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oem-6.11`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-oracle`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-raspi-realtime`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-realtime`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-riscv`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026
Ubuntu 24.04 LTSnoble · standard archive	`linux-xilinx`	Affected, no fix publishedCanonical OVAL identifies this running kernel flavour as affected and does not publish a fixed package version in this definition.	`Not published in this feed`	Canonical Ubuntu Security ↗Source updated 5 Oct 2026

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current

CVE-2026-53255 · CSAF 2.0 · revision 12 · interimSUSE Product Security TeamCVE-2026-53255

266 known affected

The vendor explicitly identifies these products as affected by this CVE.

kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-source as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1

Summary: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate advertising TLV before type checks tlv_data_is_valid() reads each advertising data field length from data[i], then inspects data[i + 1] for managed EIR types before checking that the current field still fits inside the supplied buffer. A malformed field whose length byte is the last byte of the buffer can therefore make the parser read one byte past the advertising data. KASAN reported the following when a malformed MGMT_OP_ADD_ADVERTISING request reached that path: BUG: KASAN: vmalloc-out-of-bounds in tlv_data_is_valid() Read of size 1 Call trace: tlv_data_is_valid() add_advertising() hci_mgmt_cmd() hci_sock_sendmsg() Move the existing element-length check before any type-octet inspection so each non-empty element is proven to contain its type byte before the parser looks at data[i + 1].
Remediation: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Recommended actionPatch only the product branches with a verified fix

Fix availability varies by product

What, why and how

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate advertising TLV before type checks tlv_data_is_valid() reads each advertising data field length from data[i], then inspects data[i + 1] for managed EIR types before checking that the current field still fits inside the supplied buffer. A malformed field whose length byte is the last byte of the buffer can therefore make the parser read one byte past the advertising data. KASAN reported the following when a malformed MGMT_OP_ADD_ADVERTISING request reached that path: BUG: KASAN: vmalloc-out-of-bounds in tlv_data_is_valid() Read of size 1 Call trace: tlv_data_is_valid() add_advertising() hci_mgmt_cmd() hci_sock_sendmsg() Move the existing element-length check before any type-octet inspection so each non-empty element is proven to contain its type byte before the parser looks at data[i + 1].

What

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Why

The product reads data past the end, or before the beginning, of the intended buffer.

How

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path: local access → Out-of-bounds Read → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Unchanged: impact remains within the vulnerable component's security authority
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-125 ↗
CWE-125: Out-of-bounds Read. The product reads data past the end, or before the beginning, of the intended buffer.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CHighConfidentiality impact: A successful attack can cause a major loss.INoneIntegrity impact: No direct loss is represented by this metric.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

CWE-125

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-39206Official EUVD mapping

0 linked advisory records.

Official EUVD record ↗

BSI · German · WID-SEC-2026-2077Linux Kernel: Mehrere Schwachstellen

Ein entfernter Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen und weitere, nicht näher spezifizierte Auswirkungen zu erzielen.

Official advisory ↗

Cyber Security Agency of Singapore · English · CSA-SB-20260701Security Bulletin 1 July 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 1 July 2026, published on 1 July 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1252Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53246 Référence CVE CVE-2026-53247 https://www.cve.org/CVERecord?id=CVE-2026-53247 Référence CVE CVE-2026-53248 https://www.cve.org/CVERecord?id=CVE-2026-53248 Référence CVE CVE-2026-53249 https://www.cve.org/CVERecord?id=CVE-2026-53249 Référence CVE CVE-2026-53250 https://www.cve.org/CVERecord?id=CVE-2026-53250 Référence CVE CVE-2026-53251 https://www.cve.org/CVERecord?id=CVE-2026-53251 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53253 https://www.cve.org/CVERecord?id=CVE-2026-53253 Référence CVE CVE-2026-53254 https://www.cve.org/CVERecord?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53257 https://www.cve.org/CVERecord?id=CVE-2026-53257 Référence CVE CVE-2026-53258 https://www.cve.org/CVERecord?id=CVE-2026-53258 Référence CVE CVE-2026-53259 https://www.cve.org/CVERecord?id=CVE-2026-53259 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53261 https://www.cve.org/CVERecord?id=CVE-2026-53261 Référence CVE CVE-2026-53262 https://www.cve.org/CVERecord?id=CVE-2026-53262 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1229Multiples vulnérabilités dans le noyau Linux d'Ubuntu

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1203Multiples vulnérabilités dans le noyau Linux d'Ubuntu

d?id=CVE-2026-53245 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53248 https://www.cve.org/CVERecord?id=CVE-2026-53248 Référence CVE CVE-2026-53249 https://www.cve.org/CVERecord?id=CVE-2026-53249 Référence CVE CVE-2026-53250 https://www.cve.org/CVERecord?id=CVE-2026-53250 Référence CVE CVE-2026-53251 https://www.cve.org/CVERecord?id=CVE-2026-53251 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53253 https://www.cve.org/CVERecord?id=CVE-2026-53253 Référence CVE CVE-2026-53254 https://www.cve.org/CVERecord?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53257 https://www.cve.org/CVERecord?id=CVE-2026-53257 Référence CVE CVE-2026-53258 https://www.cve.org/CVERecord?id=CVE-2026-53258 Référence CVE CVE-2026-53259 https://www.cve.org/CVERecord?id=CVE-2026-53259 Référence CVE CVE-2026-53261 https://www.cve.org/CVERecord?id=CVE-2026-53261 Référence CVE CVE-2026-53262 https://www.cve.org/CVERecord?id=CVE-2026-53262 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=CVE-2026-53263 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1162Multiples vulnérabilités dans le noyau Linux d'Ubuntu

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1064Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53242 Référence CVE CVE-2026-53245 https://www.cve.org/CVERecord?id=CVE-2026-53245 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53247 https://www.cve.org/CVERecord?id=CVE-2026-53247 Référence CVE CVE-2026-53250 https://www.cve.org/CVERecord?id=CVE-2026-53250 Référence CVE CVE-2026-53251 https://www.cve.org/CVERecord?id=CVE-2026-53251 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53253 https://www.cve.org/CVERecord?id=CVE-2026-53253 Référence CVE CVE-2026-53254 https://www.cve.org/CVERecord?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53265 https://www.cve.org/CVERecord?id=CVE-2026-53265 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-1029Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53227 Référence CVE CVE-2026-53236 https://www.cve.org/CVERecord?id=CVE-2026-53236 Référence CVE CVE-2026-53242 https://www.cve.org/CVERecord?id=CVE-2026-53242 Référence CVE CVE-2026-53245 https://www.cve.org/CVERecord?id=CVE-2026-53245 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53249 https://www.cve.org/CVERecord?id=CVE-2026-53249 Référence CVE CVE-2026-53250 https://www.cve.org/CVERecord?id=CVE-2026-53250 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53254 https://www.cve.org/CVERecord?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53260 https://www.cve.org/CVERecord?id=CVE-2026-53260 Référence CVE CVE-2026-53262 https://www.cve.org/CVERecord?id=CVE-2026-53262 Référence CVE CVE-2026-53267 https://www.cve.org/CVERecord?id=CVE-2026-53267 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=CVE-2026-53273 Référence CVE CVE-2026-53275 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0927Multiples vulnérabilités dans le noyau Linux de SUSE

d?id=CVE-2026-53237 Référence CVE CVE-2026-53239 https://www.cve.org/CVERecord?id=CVE-2026-53239 Référence CVE CVE-2026-53241 https://www.cve.org/CVERecord?id=CVE-2026-53241 Référence CVE CVE-2026-53242 https://www.cve.org/CVERecord?id=CVE-2026-53242 Référence CVE CVE-2026-53245 https://www.cve.org/CVERecord?id=CVE-2026-53245 Référence CVE CVE-2026-53246 https://www.cve.org/CVERecord?id=CVE-2026-53246 Référence CVE CVE-2026-53249 https://www.cve.org/CVERecord?id=CVE-2026-53249 Référence CVE CVE-2026-53253 https://www.cve.org/CVERecord?id=CVE-2026-53253 Référence CVE CVE-2026-53254 https://www.cve.org/CVERecord?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53258 https://www.cve.org/CVERecord?id=CVE-2026-53258 Référence CVE CVE-2026-53262 https://www.cve.org/CVERecord?id=CVE-2026-53262 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=CVE-2026-53263 Référence CVE CVE-2026-53266 https://www.cve.org/CVERecord?id=CVE-2026-53266 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53272 https://www.cve.org/CVERecord?id=CVE-2026-53272 Référence CVE CVE-2026-53274 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0862Multiples vulnérabilités dans le noyau Linux de Debian LTS

d?id=CVE-2026-53236 Référence CVE CVE-2026-53238 https://www.cve.org/CVERecord?id=CVE-2026-53238 Référence CVE CVE-2026-53239 https://www.cve.org/CVERecord?id=CVE-2026-53239 Référence CVE CVE-2026-53242 https://www.cve.org/CVERecord?id=CVE-2026-53242 Référence CVE CVE-2026-53245 https://www.cve.org/CVERecord?id=CVE-2026-53245 Référence CVE CVE-2026-53249 https://www.cve.org/CVERecord?id=CVE-2026-53249 Référence CVE CVE-2026-53252 https://www.cve.org/CVERecord?id=CVE-2026-53252 Référence CVE CVE-2026-53253 https://www.cve.org/CVERecord?id=CVE-2026-53253 Référence CVE CVE-2026-53254 https://www.cve.org/CVERecord?id=CVE-2026-53254 Référence CVE CVE-2026-53255 https://www.cve.org/CVERecord?id=CVE-2026-53255 Référence CVE CVE-2026-53256 https://www.cve.org/CVERecord?id=CVE-2026-53256 Référence CVE CVE-2026-53263 https://www.cve.org/CVERecord?id=CVE-2026-53263 Référence CVE CVE-2026-53264 https://www.cve.org/CVERecord?id=CVE-2026-53264 Référence CVE CVE-2026-53266 https://www.cve.org/CVERecord?id=CVE-2026-53266 Référence CVE CVE-2026-53268 https://www.cve.org/CVERecord?id=CVE-2026-53268 Référence CVE CVE-2026-53269 https://www.cve.org/CVERecord?id=CVE-2026-53269 Référence CVE CVE-2026-53270 https://www.cve.org/CVERecord?id=CVE-2026-53270 Référence CVE CVE-2026-53273 https://www.cve.org/CVERecord?id=

Official advisory ↗

CERT-FR · French · CERTFR-2026-AVI-0812Multiples vulnérabilités dans Microsoft Azure Linux

ulletin de sécurité Microsoft CVE-2026-53237 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53238 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53239 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53242 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53245 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53247 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53249 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53252 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53253 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53254 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53255 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53263 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53264 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53265 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53266 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53267 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53268 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53270 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53274 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-53275 du 27 juin 2026 Bulletin de sécurité Microsoft CVE-2026-55200 du 27 juin 2026 Bulletin de s

Official advisory ↗

JVN iPedia · Japanese · JVNDB-2026-023047LinuxのLinux Kernelにおける境界外読み取りに関する脆弱性

Linuxカーネルにおいて、以下の脆弱性が修正されました。Bluetooth: MGMTにおけるtypeチェックの前に広告TLVを検証するtl_data_is_valid()は、各広告データフィールドの長さをdata[i]から読み取り、次にdata[i + 1]で管理されたEIRタイプを検査した後、現在のフィールドが渡されたバッファ内に収まっているかを確認しています。そのため、長さバイトがバッファの最後のバイトである不正なフィールドでは、パーサが広告データの1バイト先を読み込んでしまう可能性があります。KASANは、不正なMGMT_OP_ADD_ADVERTISINGリクエストがその経路に達した際、以下のエラーを報告しました： BUG: KASAN: tlv_data_is_valid()におけるvmallocの境界外アクセスサイズ1の読み取りコールトレース： tlv_data_is_valid() add_advertising() hci_mgmt_cmd() hci_sock_sendmsg()。既存の要素長チェックをタイプオクテット検査の前に移動させることで、空でない各要素がそのタイプバイトを含むことをパーサがdata[i + 1]を見る前に検証できるようにしました。

Official advisory ↗

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Fix availability varies by product
Affected: kernel-default as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-source as component of SUSE Linux Enterprise High Performance Computing 12 SP4
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-base as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default-man as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP1
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP1
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP2
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP2
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-macros as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-source as component of SUSE Linux Enterprise High Performance Computing 15 SP3
reiserfs-kmp-default as component of SUSE Linux Enterprise High Performance Computing 15 SP3
kernel-default as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-default-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
kernel-devel as component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS
and 236 more
Fixed: Linux: < 4.9, 5.10.259 ≤ 5.10.*, 5.15.210 ≤ 5.15.*, 6.1.176 ≤ 6.1.*, 6.6.143 ≤ 6.6.*, 6.12.94 ≤ 6.12.*, 6.18.36 ≤ 6.18.*, 7.0.13 ≤ 7.0.*, 7.1 ≤ *
Action: Use the product-specific evidence above. Patch only products with a verified fixed release, and keep every affected or under-investigation state without a matching fix in the remediation queue.
Workaround: No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.

Evidence and provenance

Published 25 Jun 2026 · Last source change 25 Jun 2026, 08:39 UTC · CWE-125 · Out-of-bounds Read

CVE recordCVE.org · 5.2

CVSS sourceNIST NVD

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2026-39206

Product sourceVendor CSAF · SUSE Product Security Team

Remediation sourceVendor CSAF · SUSE Product Security Team

CWE sourceNIST NVD

NVD statusNVD enriched

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2026-06-25CVE published

2026-06-25Fixed release or patch reference recorded

ENISA EUVD · EUVD-2026-39206↗Vendor CSAF · SUSE Product Security Team↗CVE authority or vendor reference↗Patch or update reference↗Patch or update reference↗Patch or update reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

Bluetooth: MGMT: validate advertising TLV before type checks

Published severity in operational context

Evidence used

Compensating controls

Verification

Remediation availability differs by product scope

Release-specific package status

Authoritative vendor CSAF and VEX advisories

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2026-39206

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication